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What does the y-int of a velocity-time graph represent?

  1. Feb 21, 2009 #1
    1. The problem statement, all variables and given/known data

    I collected data from a cart accelerating down an inclined track and made a velocity-time graph from the position-time graph.
    What does the y-int of my v-t graph represent?

    2. The attempt at a solution

    I know that it represents the initial velocity of the motion. But what exatly does this initial velocity represent?
  2. jcsd
  3. Feb 21, 2009 #2


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    Homework Helper

    What more can be said about initial velocity?
    This is the speed at the time you called zero.
  4. Feb 21, 2009 #3
    Did you start your timing immediately after releasing the cart from rest?
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